MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRI TS BASEPLATE SIZE 4; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	5521-B-400
Medical Device Problem Code	Loosening of Implant Not Related to Bone-Ingrowth (4002)
Health Effect - Clinical Code	Injury (2348)
Date of Event	11/20/2018
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Reported event: an event regarding tibial loosening involving a triathlon ts baseplate component was reported.The event was not confirmed.Method & results: device evaluation and results: not performed as product was not returned.Medical records received and evaluation: no medical records were received for review with a clinical consultant.Device history review: all devices were manufactured and accepted into final stock with no relevant reported discrepancies.Complaint history review: there have been no other similar events for the reported lot.Conclusion: the exact cause of the event could not be determined because insufficient information was provided.Additional information, including operative reports, progress notes, x-rays and return of the device are needed to fully investigate the event.If further information becomes available or the product is returned, this investigation will be re-opened.
Event or Problem Description
It was reported through the submission of a primary and a revision implant sheet, that the patient's right knee was revised.Comparing the sheets, a 4x11 cs insert and size 4 universal tibial baseplate were revised to a 4x19 cs insert, another size 4 universal tibial baseplate with a 12x100 cemented stem and 4x5 tibial augment.It was later reported that the patient's grandson jumped on patient's knee which caused loosening of the tibial component.The tibial component and liner were revised as originally reported.

• Brand Name: TRI TS BASEPLATE SIZE 4
• Common Device Name: PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO
• Manufacturer (Section D): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• MDR Report Key: 8174007
• Report Number: 0002249697-2018-04060
• Device Sequence Number: 19553210
• Product Code: MBH
• UDI-Device Identifier: 07613327026061
• UDI-Public: 07613327026061
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K141056
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2017
• Device Explanted Year: 2018
• Reporter Type: Manufacturer
• Report Source: health professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 12/18/2018

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Expiration Date: 08/30/2021
• Device Catalogue Number: 5521-B-400
• Device Lot Number: VS3AA
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/20/2018
• Initial Report FDA Received Date: 12/18/2018
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Age: 48 YR